1200011568 has 160 divisors (see below), whose sum is σ = 3773568000. Its totient is φ = 327849984.

The previous prime is 1200011539. The next prime is 1200011573. The reversal of 1200011568 is 8651100021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377088 + ... + 380256.

It is an arithmetic number, because the mean of its divisors is an integer number (23584800).

Almost surely, 2^1200011568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200011568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886784000).

1200011568 is an abundant number, since it is smaller than the sum of its proper divisors (2573556432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200011568 is a wasteful number, since it uses less digits than its factorization.

1200011568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224 (or 3204 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 1200011568 is about 34641.1831206730. The cubic root of 1200011568 is about 1062.6619838478.

Adding to 1200011568 its reverse (8651100021), we get a palindrome (9851111589).

The spelling of 1200011568 in words is "one billion, two hundred million, eleven thousand, five hundred sixty-eight".